Arrangement for the stretching and warping of warp threads

Details Arrangement for the stretching and warping of warp threads Arrangement for the stretching and warping of warp threads

1984-01-03

1987-06-02

Mackey, Robert R.

Textiles: manufacturing

Warp preparing or handling

With means responsive to sensed condition

28172, 28241, D02H 300, D02J 122

Patent

active

046691596

ABSTRACT:
In an arrangement for the stretching and warping of thermoplastic warp threads, in particular polyester threads, there is provided an arrangement comprising a set of feeding rollers, a heating arrangement and a set of take-off rollers. The latter set of rollers has a higher circumferential speed than the former. Between the two sets of rollers there is provided at least one deflecting roller. The circumferential surface of this deflecting roller is divided into a heatable section and a relatively non-heatable section. The deflecting roller is rotatable from an operating position, in which the deflecting surface comprises the heatable surface portion, into a rest position wherein the deflecting surface presented is the non-heatable portion. In this way, the length of the thread exposed to heat can be extended between the feeding and take-off rollers without overheating of thread during the stopping of the arrangement. Other aspects of the mode of the process are also described herein.

REFERENCES:
patent: 3364587 (1968-01-01), Norton et al.
patent: 3701268 (1972-10-01), Treptow et al.
patent: 3732395 (1976-05-01), David
patent: 4407767 (1983-10-01), Seaborn
patent: 4513516 (1985-04-01), Bjornberg

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